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A capacitor initially given a charge Q_(o) is connected across a resistor R at t = 0. The separation between the plates changes according to d=(d_(o))/(1+t)(oletlt1)A small bulb is connected across the plates of the capacitor which lights when potential difference across the plates of the capacitor reaches V_(o). Find (a) the variation of charge with time (b) till when the bulb will light |
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Answer» SOLUTION :`Q=Q_(o)(1+t)^((1)/(RC_(o)))` (b)`t=1-((V_(o)C_(0))/Q_(o))^-(RC_(o)/(RC_(o)+1))` |
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